Leeuwarden city

Leeuwarden/Ljouwert (Ljout, locally: Luwarden) is the capital of the Dutch
province Friesland/Fryslân. The city of Leeuwarden is the seat of
Leeuwarden municipality.
This flag was readopted 1 August 1947 after an image from a flagbook
of 1708. Before that the citizens used a flag of two bars of Blue and Yellow.
But no less than 21 sources depict for Leeuwarden a flag with a yellow
lion; in 16 cases on a green field, in 5 cases on a blue field.
Source: Sierksma, Nederlands Vlaggenboek, 1962.[sie62]
Jarig Bakker, 28 August 1999

Historical flag c. 1680

by Jarig Bakker, 16 Jun 2003

A golden lion, rampant, on a green background.
(Source: Dutch atlas made by Delisle in 1739)James Dignan, 14 November 1996

Green field with a yellow lion.
This is probably an older BoA, reported since 1680. Older Coats of Arms have
a green background.
On Gerard van Keulen's flagchart (c. 1710) the lion is relatively smaller
than on Sierksma's image.
Jarig Bakker, 16 Jun 2003

Historical flag before 1947

Two horizontal stripes blue over yellow, used before the present flag
was officially adopted (>1947)
Jarig Bakker, 16 Jun 2003

Historical flag c. 1750

by Jarig Bakker, 16 Jun 2003

Blue field with a yellow lion.
This flag is a Banner of Arms, and occurs on old flagcharts since 1750.
Leeuwarden's name is said to be derived from "leeuw" = lion.
I've used the Coat of Arms on Ralf Hartemink's
site.
Jarig Bakker, 16 Jun 2003